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Can't pass memtest in dual channel mode


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Hi!

 

I own a LP UT nF4 SLI-DR Expert and I'm trying to pass the built-in memtest with my 2x512 Crucial Ballistix PC3200 modules without success. I've set the memory timings manually since SPD fails to recognize the correct values (2-2-2-6 @ DDR400 and 2.8V). I've tested first with banks 2 and 4 (orange, as recommended by DFI) and also with DIMM banks 1 and 3 (yellow). Testing in single channel mode (banks 1 & 2) works fine. I have also tried other DRAM modules from Samsung and Kingston HyperX, but I'm always getting errors in dual channel mode with this motherboard. I'm suspecting that the PSU 12V line is weak (28A) for this mobo (my Enermax 535W All-in-one burned in fire, I still don't know how), what do you think, could this issue been related to PSU? I'm running a single 7600 GT GPU, one hdd and one DVD-RW. Thanks in advance,

 

Bernhard Enders.

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hey, another ballistix user :) first off, i too was having problems getting my ram stable, but i realized they were getting quite hot. i then grabbed a spare fan (the stock amd one), and set it ontop of my cpu's HSF and have them blowing directly on my ram, which cooled the sticks down a ton and made them much more stable. (click for pic). use the orange slots, i was still unstable in the yellow ones, but i believe i am now stable in the orange slots (14 hours encounting). also, what are the rest of your timings? these could also affect your stability, as well as your PSU if it has fluctuating voltages. i'm sure you've already got this, but also make sure you have all your power connections on the mobo, 24-pin, 4-pin cpu, and the 4-pin hdd type, and the floppy type.

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Hello,

 

Please try not to create two threads about the same thing.

 

You suspect your power supply (its not enermax) but fail to mention what it is?

Probably is the problem.

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Please try not to create two threads about the same thing.

 

Sorry, but where is the original thread about memory or PSU compatibility issues in dual channel mode?

 

You suspect your power supply (its not enermax) but fail to mention what it is?

Probably is the problem.

 

Yes, and it is only a suspicion since my system is not 'voltage hungry', as you can see in my signature, humm... I fail to remeber of including one in my first post to this forum, sorry for this.

 

Bernhard.

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